Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1996-07-09
1999-09-21
Barry, Esq., Lance Leonard
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370431, 370462, H04J 1500
Patent
active
059563389
ABSTRACT:
Network architectures and data communication protocols for supporting both downstream and upstream transport of digital data between a headend facility and multiple downstream network terminals over a shared communication medium include downstream framing protocols compatible with DVB modem transmission framing synchronization and FEC standards at the physical layer, which support a full range of 16 to 256 QAM transmission rates in both 6 MHz and 8 MHz channels. The downstream data frames are formed by one or more repeating pairs of DVB compatible frame slots, wherein each downstream frame is transmitted over the same interval, e.g., 250 usec in preferred formats, regardless of the number of DVB slot pairs it contains. All downstream frame rates are supported by a single upstream data rate. Upstream bandwidth is allocated based on a selected set of operating criteria and service type priorities, based on both a polling basis and a contention basis, on one or more in-band RF subcarrier channels.
REFERENCES:
patent: 5142532 (1992-08-01), Adams
patent: 5185737 (1993-02-01), Nassehi et al.
patent: 5317571 (1994-05-01), Marcel et al.
patent: 5355368 (1994-10-01), Dore et al.
patent: 5425027 (1995-06-01), Baran
patent: 5426636 (1995-06-01), Hiller et al.
patent: 5557612 (1996-09-01), Bingham
C. Sierens et al.: "A First Description of the Hybrid Fiber Coax Concept in the Framework of the Acts Project ATHOC" IEE Colloquium on Optical and Hybrid Access Networks, Mar. 4-5, 1996, IPSWICH GB, pp. 18/1-18/5, XP002050372 see paragraph 3.
V. Vande Keere et al.: "Rapid Prototyping of a CATV Network Termination for ATM-Based Video-on-Demand Services" 7.sup.th IEEE International Workshop on Rapid System Prototyping, Jul. 19-21, 1996, Thessaloniki GR, pp. 44-49, XP002050373 see par. 3.2 -para 4.4.
J.E. Dail et al.: "Adaptive Digital Access Protocol: A Mac Protocol for Multiservice Broadband Access Networks" IEEE Communications Magazine, vol. 34, No. 3, Mar. 1996 N.Y.US, pp. 104-112, XP000557382.
Bisdikian, C: "MLAP: A MAC Level Access Protocol for the HFC 802.14 Network" IEEE Communications Magazine, vol. 34, No. 3, Mar. 1, 1996, pp. 114-121, XP000557383.
Access to B-ISDN Via PONS: ATM Communication in Practice, edited by Ulrich Killat, pub. by Wiley and Tuebner, 1996, pp. I-XX, 1-308.
Barry, Esq. Lance Leonard
Ericsson Inc.
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